EP3224490A1 - Wheel nut assembly - Google Patents

Wheel nut assembly

Info

Publication number
EP3224490A1
EP3224490A1 EP15863091.3A EP15863091A EP3224490A1 EP 3224490 A1 EP3224490 A1 EP 3224490A1 EP 15863091 A EP15863091 A EP 15863091A EP 3224490 A1 EP3224490 A1 EP 3224490A1
Authority
EP
European Patent Office
Prior art keywords
wheel
nut
grooves
internal
ribs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15863091.3A
Other languages
German (de)
French (fr)
Other versions
EP3224490B1 (en
EP3224490A4 (en
Inventor
Michael Ferman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2014904781A external-priority patent/AU2014904781A0/en
Application filed by Individual filed Critical Individual
Publication of EP3224490A1 publication Critical patent/EP3224490A1/en
Publication of EP3224490A4 publication Critical patent/EP3224490A4/en
Application granted granted Critical
Publication of EP3224490B1 publication Critical patent/EP3224490B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/14—Attaching disc body to hub ; Wheel adapters
    • B60B3/16—Attaching disc body to hub ; Wheel adapters by bolts or the like
    • B60B3/165—Attaching disc body to hub ; Wheel adapters by bolts or the like with locking devices for the fixing means, e.g. screw or nut covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B23/00—Attaching rim to wheel body
    • B60B23/06—Attaching rim to wheel body by screws, bolts, pins, or clips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/028—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of an auxiliary bolt or threaded element whose action provokes the deformation of the main bolt or nut and thereby its blocking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
    • F16B39/16—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts in which the screw-thread of the locknut differs from that of the nut
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F16B5/0275—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread the screw-threaded element having at least two axially separated threaded portions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them

Definitions

  • This invention relates to wheel nuts for retaining vehicle wheels on the wheel hub and for ameliorating the risk of the nuts becoming loose. Background to the invention.
  • USA patent 6053681 discloses a custom wheel stud with a polygonal extension and an axial internal screw thread into the stud extension.
  • a cap covered the nut and engaged the polygonal extension of the stud and a cover was fastened to the end of the stud by a screw to prevent removal of the cap his arrangement had the disadvantage that the nut and cover are separate items and this means that while the nut is being tightened there are 3 loose components (cap cover and screw) lying around.
  • the present invention provides a wheel nut assembly for fixing a wheel to a vehicle hub which includes
  • a wheel nut with an internal thread and an axial body extension on said nut including a first section with a set of internal set of axial grooves or ribs and a second section containing a second internal screw thread ;
  • a wheel stud having an external thread to co-operate with the internal thread of said wheel nut and having an end portion adapted to project beyond the wheel nut which end portion includes axial grooves or ribs on its external surface;
  • an axial retaining cap consisting of an upper externally screw threaded first portion which is adapted to engage the second internal screw thread of said body extension of said nut and attached to said first portion a second cap portion having internal grooves or ribs complementary to the external ribs or grooves on said wheel stud adapted to fit over said wheel stud and having a set of external ribs or grooves adapted to engage the internal set of axial grooves or ribs on the first section of said body extension of said wheel nut;
  • said first portion of said retaining cap being able to be rotated so that it moves axially down the internal screw thread of the second section of said body extension of said wheel nut so that the second portion of said cap is pushed down the end of said wheel stud to engage the external ribs and grooves of the end of said wheel stud and optionally the internal ribs and grooves of the first section of said body extension of said wheel nut.
  • An alien key may be provided to enable rotation of the first portion and the alien key may be a custom design where security from theft is a key factor.
  • the major benefit is the prevention of nut loosening with a simple to use fast method for wheel changes.
  • the first and second portions of the cap are connected but may rotate relative to each other about the axis of the stud.
  • the ribs and grooves on the internal and external surface of the second part are arranged align with both the complementary ribs or grooves on end of the wheel stud and the internal surface of the nut extension.
  • Figure 1 illustrates the assembled wheel stud and nut according to an embodiment of this invention
  • Figure 2 is an exploded view of the embodiment of figure 1 ;
  • Figure 3 is a top view of the embodiment of figure 1 ;
  • Figure 4 is a side view of the embodiment of figure 1;
  • Figure 5 is a section view of the embodiment of figure 1 ;
  • Figure 6 is a section view of the embodiment of figure 1 with the nut tightened but the cap disengaged;
  • Figure 7 is a section view of the embodiment of figure 1 with the cap beginning to be screwed down;
  • Figure 8 is a section view of the embodiment of figure 1 with the cap and nut fully engaged;
  • Figure 9 illustrates the alignment of the splines on the nut, key and stud
  • Figure 10 illustrates another alignment arrangement of the splines on the nut, key and stud.
  • the custom wheel stud 10 is a conventional stud having the external screw thread 13 except for the extension 14 and splines 15.
  • the custom wheel nut 20 has the conventional nut body 21 with the conventional screw thread 23 engaging the screw thread 13 of the stud.
  • the locking cap 30 consist of two parts the key 36 and the alien key cap 31.
  • the key cap 31 has internal splines or grooves 37 that engage with the splines 15 of the stud.
  • the key 36 has external splines 38 that engage with the internal splines
  • the key 36 as shown is a cylinder but it may be a partial cylinder or a set of pins or a corrugated cylinder. As a corrugated cylinder key 36 may also be discontinuous and act as a spring.
  • the rivet 39 is deformed to allow the key to be attached to the alien key cap 31 and allow the cap and key to be moved relative to each other.
  • the O ring 35 seats between the cap 31 and the key 36.
  • the alien key cap has external screw thread 33 which engages the internal screw thread 26 of the nut extension.
  • the nut and cap assembly is sold assembled as shown in figure 6. This means the nut can be tightened to the stud in the normal way as shown in figure 6.
  • the alien key cap 31 is rotated so that the cap 31 and key 36 move axially toward the nut and the internal splines 37 of the key engage the external splines 15 of the stud.
  • This movement also means that the external splines 38 of the key engage the internal splines 25 of the nut extension.
  • the splines on the internal and external surface of the key 36 are arranged so that a small amount of paly is sufficient for the splines to engage with the complementary grooves 15 and 25 of the stud and nut.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

A wheel nut assembly for fixing a wheel to a vehicle hub which includes a wheel nut with an internal thread and an axial body extension on said nut including a first section with an internal set of axial grooves or ribs and a second section containing a second internal screw thread. There is also a wheel stud having an external thread to co-operate with the internal thread of said wheel nut and having an end portion adapted to project beyond the wheel nut which end portion includes axial grooves or ribs on its external surface. An axial retaining cap consists of an upper externally screw threaded first portion which is adapted to engage the second internal screw thread of said body extension of said nut and attached to said first portion a second cap portion having internal grooves or ribs complementary to the external ribs or grooves on said wheel stud adapted to fit over said wheel stud and having external ribs or grooves adapted to engage the internal set of axial grooves or ribs on the first section of said body extension of said wheel nut. The first portion of said retaining cap is able to be rotated so that it moves axially down the internal screw thread of the second section of said body extension of said wheel nut so that the second portion of said cap is pushed down the end of said wheel stud and is held between the external ribs and grooves of the end of said wheel stud and the internal ribs and grooves of the first section of said body extension of said wheel nut.

Description

WHEEL NUT ASSEMBLY
This invention relates to wheel nuts for retaining vehicle wheels on the wheel hub and for ameliorating the risk of the nuts becoming loose. Background to the invention.
In order to prevent wheel nuts loosening one approach has been to provide a stud for the nut that has an internal thread of opposite hand to the thread of the nut. Such an arrangement is disclosed in USA patent 6916144.
Another proposal is to use a compression collar for the nut as in USA patent 6935825.
USA patent 6053681 discloses a custom wheel stud with a polygonal extension and an axial internal screw thread into the stud extension. A cap covered the nut and engaged the polygonal extension of the stud and a cover was fastened to the end of the stud by a screw to prevent removal of the cap his arrangement had the disadvantage that the nut and cover are separate items and this means that while the nut is being tightened there are 3 loose components (cap cover and screw) lying around.
In these arrangements it is important to have tamper proof nut assembly that visibly indicates that the nut is tightened. In addition it is usual to provide an aesthetic cap or cover for the nut.
WO2011/057337 by the present applicant addressed some of these issues but required a number of components and a complex locking mechanism.
It is an object of this invention to provide a tamper evident wheel nut arrangement that also enables the provision of a variety of aesthetic appearances in a simple and cost effective way..
Brief description of the invention
To this end the present invention provides a wheel nut assembly for fixing a wheel to a vehicle hub which includes
a wheel nut with an internal thread and an axial body extension on said nut including a first section with a set of internal set of axial grooves or ribs and a second section containing a second internal screw thread ; a wheel stud having an external thread to co-operate with the internal thread of said wheel nut and having an end portion adapted to project beyond the wheel nut which end portion includes axial grooves or ribs on its external surface;
an axial retaining cap consisting of an upper externally screw threaded first portion which is adapted to engage the second internal screw thread of said body extension of said nut and attached to said first portion a second cap portion having internal grooves or ribs complementary to the external ribs or grooves on said wheel stud adapted to fit over said wheel stud and having a set of external ribs or grooves adapted to engage the internal set of axial grooves or ribs on the first section of said body extension of said wheel nut;
said first portion of said retaining cap being able to be rotated so that it moves axially down the internal screw thread of the second section of said body extension of said wheel nut so that the second portion of said cap is pushed down the end of said wheel stud to engage the external ribs and grooves of the end of said wheel stud and optionally the internal ribs and grooves of the first section of said body extension of said wheel nut.
This arrangement has the advantage of fewer components and ease of operation. An alien key may be provided to enable rotation of the first portion and the alien key may be a custom design where security from theft is a key factor. The major benefit is the prevention of nut loosening with a simple to use fast method for wheel changes.
The first and second portions of the cap are connected but may rotate relative to each other about the axis of the stud. The ribs and grooves on the internal and external surface of the second part are arranged align with both the complementary ribs or grooves on end of the wheel stud and the internal surface of the nut extension.
Detailed description of the invention
Various embodiments of the invention will be described with reference to the drawings in which
Figure 1 illustrates the assembled wheel stud and nut according to an embodiment of this invention; Figure 2 is an exploded view of the embodiment of figure 1 ;
Figure 3 is a top view of the embodiment of figure 1 ;
Figure 4 is a side view of the embodiment of figure 1;
Figure 5 is a section view of the embodiment of figure 1 ;
Figure 6 is a section view of the embodiment of figure 1 with the nut tightened but the cap disengaged;
Figure 7 is a section view of the embodiment of figure 1 with the cap beginning to be screwed down;
Figure 8 is a section view of the embodiment of figure 1 with the cap and nut fully engaged;
Figure 9 illustrates the alignment of the splines on the nut, key and stud;
Figure 10 illustrates another alignment arrangement of the splines on the nut, key and stud. The custom wheel stud 10 is a conventional stud having the external screw thread 13 except for the extension 14 and splines 15.
The custom wheel nut 20 has the conventional nut body 21 with the conventional screw thread 23 engaging the screw thread 13 of the stud. The cylindrical extension
24 has a first section with internal splines or ribs 25 and a second section with a second internal screw thread 26 which can best be seen in the sectional views.
The locking cap 30 consist of two parts the key 36 and the alien key cap 31.
The key cap 31 has internal splines or grooves 37 that engage with the splines 15 of the stud. The key 36 has external splines 38 that engage with the internal splines
25 of the nut extension. The key 36 as shown is a cylinder but it may be a partial cylinder or a set of pins or a corrugated cylinder. As a corrugated cylinder key 36 may also be discontinuous and act as a spring. The rivet 39 is deformed to allow the key to be attached to the alien key cap 31 and allow the cap and key to be moved relative to each other. The O ring 35 seats between the cap 31 and the key 36. The alien key cap has external screw thread 33 which engages the internal screw thread 26 of the nut extension.
The nut and cap assembly is sold assembled as shown in figure 6. This means the nut can be tightened to the stud in the normal way as shown in figure 6. To lock the nut the alien key cap 31 is rotated so that the cap 31 and key 36 move axially toward the nut and the internal splines 37 of the key engage the external splines 15 of the stud. This movement also means that the external splines 38 of the key engage the internal splines 25 of the nut extension. The splines on the internal and external surface of the key 36 are arranged so that a small amount of paly is sufficient for the splines to engage with the complementary grooves 15 and 25 of the stud and nut. When the cap 30 is fully tightened the nut cannot be rotated. And the cap can only be unscrewed using an alien key.
Other conventional means for rotating cap 31 besides an alien key.
Those skilled in the art will realise that this invention provides a unique and less expensive means of ensuring that a wheel nut is securely fastened to the wheel hub. Those skilled in the art will also realise that this invention may be implemented in embodiments other than those described without departing from the core teachings of the invention.

Claims

1. A wheel nut assembly for fixing a wheel to a vehicle hub which includes a wheel nut with an internal thread and an axial body extension on said nut including a section containing a second internal screw thread ;
a wheel stud having an external thread to co-operate with the internal thread of said wheel nut and having an end portion adapted to project beyond the wheel nut which end portion includes axial grooves or ribs on its external surface;
an axial retaining cap consisting of an upper externally screw threaded first portion which is adapted to engage the second internal screw thread of said body extension of said nut and a second cap portion attached to said first portion said second cap portion having internal grooves or ribs
complementary to the external ribs or grooves on said wheel stud adapted to fit over said wheel stud
said first portion of said retaining cap being able to be rotated so that it moves axially down the internal screw thread of the second section of said body extension of said wheel nut so that the second portion of said cap is pushed down the end of said wheel stud and to engage the external ribs and grooves of the end of said wheel stud.
2. A wheel nut assembly as claimed in claim 1 wherein said wheel nut extension includes a first section with a set internal set of axial grooves or ribs between the first and second screw threads of said nut and the second portion of said retaining cap having a set of external ribs or grooves adapted to engage the internal set of axial grooves or ribs on the first section of said body extension of said wheel nut, when the cap portion is screwed into the wheel nut extension.
3. A wheel nut for use in the assembly of claim 1 which consists of
a wheel nut with an internal thread and an axial body extension on said nut including a section containing a second internal screw thread ;
an axial retaining cap consisting of an upper externally screw threaded first portion which is adapted to engage the second internal screw thread of said body extension of said nut and attached to said first portion a second cap portion having internal grooves or ribs complementary to the external ribs or grooves on said wheel stud adapted to fit over said wheel stud and having a set of external ribs or grooves adapted to engage the internal set of axial grooves or ribs on the first section of said body extension of said wheel nut; said first portion of said retaining cap being able to be rotated so that it moves axially down the internal screw thread of the second section of said body extension of said wheel nut so that the second portion of said cap is pushed down the end of said wheel stud to engage the external ribs and grooves of the end of said wheel stud and optionally the internal ribs and grooves of the first section of said body extension of said wheel nut.
EP15863091.3A 2014-11-26 2015-11-23 Wheel nut assembly Active EP3224490B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2014904781A AU2014904781A0 (en) 2014-11-26 Wheel Nut Assembly
PCT/AU2015/000706 WO2016081975A1 (en) 2014-11-26 2015-11-23 Wheel nut assembly

Publications (3)

Publication Number Publication Date
EP3224490A1 true EP3224490A1 (en) 2017-10-04
EP3224490A4 EP3224490A4 (en) 2018-07-11
EP3224490B1 EP3224490B1 (en) 2020-10-07

Family

ID=56073204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15863091.3A Active EP3224490B1 (en) 2014-11-26 2015-11-23 Wheel nut assembly

Country Status (6)

Country Link
US (1) US10308067B2 (en)
EP (1) EP3224490B1 (en)
CN (1) CN107002738B (en)
AU (1) AU2015354379B2 (en)
BR (1) BR112017011109B1 (en)
WO (1) WO2016081975A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD858997S1 (en) * 2017-11-17 2019-09-10 Colgate-Palmolive Company Tracking module for an oral care implement
CN111604380A (en) * 2020-06-04 2020-09-01 马鞍山市银鼎机械制造有限公司 Guide beam equipment for bar short stress rolling mill

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057985A (en) * 1976-04-16 1977-11-15 Far Out Products, Ltd. Locking nut assembly
US4324516A (en) * 1980-05-27 1982-04-13 Trailer Marine Transport Corporation Tire security cap
US4521146A (en) * 1982-11-08 1985-06-04 Maron Products, Inc. Lug nut cap
JPS59179402A (en) * 1983-03-29 1984-10-12 Souyou Sangyo Kk Wheel lock device for automobile
US6053681A (en) * 1998-06-02 2000-04-25 Mattershead; Dennis Wheel nut locking assembly
GB2365091B (en) * 2000-07-21 2003-10-22 Wheelsure Ltd Improved wheel nut assembly
GB0024485D0 (en) * 2000-10-06 2000-11-22 Wheelsure Ltd Wheel nut assembly
US6695557B2 (en) * 2001-09-05 2004-02-24 John Hove Wheel lug nut security seal
CA2778882C (en) * 2009-11-13 2020-04-07 Michael Ferman Wheel nut assembly

Also Published As

Publication number Publication date
EP3224490B1 (en) 2020-10-07
BR112017011109A2 (en) 2018-01-23
WO2016081975A1 (en) 2016-06-02
CN107002738A (en) 2017-08-01
EP3224490A4 (en) 2018-07-11
BR112017011109B1 (en) 2022-01-18
US10308067B2 (en) 2019-06-04
AU2015354379A1 (en) 2017-06-08
AU2015354379B2 (en) 2018-06-28
US20170326909A1 (en) 2017-11-16
CN107002738B (en) 2019-04-05

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